Evaluate network flows with workload insights
Network Flow Monitor provides workload insights for the network flows for top contributors in the scope (account) that you enable monitoring for. Top contributors are network flows that have the highest values for each network performance metric. Top contributors are determined for workload insights, which includes all the network flows that you're receiving performance information about, as well as for the network flows you specify for each monitor that you create.
For example, Network Flow Monitor determines the network flows that have the highest values for retransmissions, retransmission timeouts, and data transferred. These network flows are the top contributors for each metric type. On the Workload insights page in the Network Flow Monitor console, Network Flow Monitor displays the top contributor network performance statistics for the network flows between all the resources in your monitoring scope where you've deployed agents.
Note that if you have multiple accounts in your scope that each have resources that you want to monitor network flows between, you must configure AWS Organizations integration with CloudWatch before you can view performance metrics gathered by the Network Flow Monitor agents that you've installed. When you configure Organizations with Network Flow Monitor, you can add accounts to the scope for your Network Flow Monitor coverage.
Performance metrics on Workload insights are shown in separate tables for each metric type: Retransmissions, retransmission timeouts, and data transferred. The data provided is for the top contributors for each type. Note that after you first install Network Flow Monitor agents, there is a waiting period (about 20 minutes) before you can view performance metrics, while agents gather and send data to the Network Flow Monitor backend.
As you review performance metrics, when you see specific resources or network flows that you want to explore more details for, you can create a monitor that includes just those flows.
